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JspRuntimeLibrary.javaAPI DocApache Tomcat 6.0.1435012Fri Jul 20 04:20:34 BST 2007org.apache.jasper.runtime

JspRuntimeLibrary

public class JspRuntimeLibrary extends Object
Bunch of util methods that are used by code generated for useBean, getProperty and setProperty. The __begin, __end stuff is there so that the JSP engine can actually parse this file and inline them if people don't want runtime dependencies on this class. However, I'm not sure if that works so well right now. It got forgotten at some point. -akv
author
Mandar Raje
author
Shawn Bayern

Fields Summary
private static final String
SERVLET_EXCEPTION
private static final String
JSP_EXCEPTION
Constructors Summary
Methods Summary
public static java.lang.StringURLEncode(java.lang.String s, java.lang.String enc)
URL encodes a string, based on the supplied character encoding. This performs the same function as java.next.URLEncode.encode in J2SDK1.4, and should be removed if the only platform supported is 1.4 or higher.

param
s The String to be URL encoded.
param
enc The character encoding
return
The URL encoded String


	if (s == null) {
	    return "null";
	}

	if (enc == null) {
	    enc = "ISO-8859-1";	// The default request encoding 
	}

	StringBuffer out = new StringBuffer(s.length());
	ByteArrayOutputStream buf = new ByteArrayOutputStream();
	OutputStreamWriter writer = null;
	try {
	    writer = new OutputStreamWriter(buf, enc);
	} catch (java.io.UnsupportedEncodingException ex) {
	    // Use the default encoding?
	    writer = new OutputStreamWriter(buf);
	}
	
	for (int i = 0; i < s.length(); i++) {
	    int c = s.charAt(i);
	    if (c == ' ") {
		out.append('+");
	    } else if (isSafeChar(c)) {
		out.append((char)c);
	    } else {
		// convert to external encoding before hex conversion
		try {
		    writer.write(c);
		    writer.flush();
		} catch(IOException e) {
		    buf.reset();
		    continue;
		}
		byte[] ba = buf.toByteArray();
		for (int j = 0; j < ba.length; j++) {
		    out.append('%");
		    // Converting each byte in the buffer
		    out.append(Character.forDigit((ba[j]>>4) & 0xf, 16));
		    out.append(Character.forDigit(ba[j] & 0xf, 16));
		}
		buf.reset();
	    }
	}
	return out.toString();
public static java.lang.Objectcoerce(java.lang.String s, java.lang.Class target)


	boolean isNullOrEmpty = (s == null || s.length() == 0);

	if (target == Boolean.class) {
	    if (isNullOrEmpty) {
		s = "false";
	    }
	    return new Boolean(s);
	} else if (target == Byte.class) {
	    if (isNullOrEmpty)
		return new Byte((byte) 0);
	    else
		return new Byte(s);
	} else if (target == Character.class) {
	    if (isNullOrEmpty)
		return new Character((char) 0);
	    else 
		return new Character(s.charAt(0));
	} else if (target == Double.class) {
	    if (isNullOrEmpty)
		return new Double(0);
	    else
		return new Double(s);
	} else if (target == Float.class) {
	    if (isNullOrEmpty)
		return new Float(0);
	    else
		return new Float(s);
	} else if (target == Integer.class) {
	    if (isNullOrEmpty)
		return new Integer(0);
	    else
		return new Integer(s);
	} else if (target == Short.class) {
	    if (isNullOrEmpty)
		return new Short((short) 0);
	    else
		return new Short(s);
	} else if (target == Long.class) {
	    if (isNullOrEmpty)
		return new Long(0);
	    else
		return new Long(s);
	} else {
	    return null;
	}
public static booleancoerceToBoolean(java.lang.String s)

	if (s == null || s.length() == 0)
	    return false;
	else
	    return Boolean.valueOf(s).booleanValue();
public static bytecoerceToByte(java.lang.String s)

	if (s == null || s.length() == 0)
	    return (byte) 0;
	else
	    return Byte.valueOf(s).byteValue();
public static charcoerceToChar(java.lang.String s)

	if (s == null || s.length() == 0) {
	    return (char) 0;
	} else {
	    // this trick avoids escaping issues
	    return (char)(int) s.charAt(0);
	}
public static doublecoerceToDouble(java.lang.String s)

	if (s == null || s.length() == 0)
	    return (double) 0;
	else
	    return Double.valueOf(s).doubleValue();
public static floatcoerceToFloat(java.lang.String s)

	if (s == null || s.length() == 0)
	    return (float) 0;
	else
	    return Float.valueOf(s).floatValue();
public static intcoerceToInt(java.lang.String s)

	if (s == null || s.length() == 0)
	    return 0;
	else
	    return Integer.valueOf(s).intValue();
public static longcoerceToLong(java.lang.String s)

	if (s == null || s.length() == 0)
	    return (long) 0;
	else
	    return Long.valueOf(s).longValue();
public static shortcoerceToShort(java.lang.String s)

	if (s == null || s.length() == 0)
	    return (short) 0;
	else
	    return Short.valueOf(s).shortValue();
public static java.lang.Objectconvert(java.lang.String propertyName, java.lang.String s, java.lang.Class t, java.lang.Class propertyEditorClass)

        try {
            if (s == null) {
                if (t.equals(Boolean.class) || t.equals(Boolean.TYPE))
                    s = "false";
                else
                    return null;
            }
	    if (propertyEditorClass != null) {
		return getValueFromBeanInfoPropertyEditor(
				    t, propertyName, s, propertyEditorClass);
	    } else if ( t.equals(Boolean.class) || t.equals(Boolean.TYPE) ) {
                if (s.equalsIgnoreCase("on") || s.equalsIgnoreCase("true"))
                    s = "true";
                else
                    s = "false";
                return new Boolean(s);
            } else if ( t.equals(Byte.class) || t.equals(Byte.TYPE) ) {
                return new Byte(s);
            } else if (t.equals(Character.class) || t.equals(Character.TYPE)) {
                return s.length() > 0 ? new Character(s.charAt(0)) : null;
            } else if ( t.equals(Short.class) || t.equals(Short.TYPE) ) {
                return new Short(s);
            } else if ( t.equals(Integer.class) || t.equals(Integer.TYPE) ) {
                return new Integer(s);
            } else if ( t.equals(Float.class) || t.equals(Float.TYPE) ) {
                return new Float(s);
            } else if ( t.equals(Long.class) || t.equals(Long.TYPE) ) {
                return new Long(s);
            } else if ( t.equals(Double.class) || t.equals(Double.TYPE) ) {
                return new Double(s);
            } else if ( t.equals(String.class) ) {
                return s;
            } else if ( t.equals(java.io.File.class) ) {
                return new java.io.File(s);
            } else if (t.getName().equals("java.lang.Object")) {
                return new Object[] {s};
	    } else {
		return getValueFromPropertyEditorManager(
                                            t, propertyName, s);
            }
        } catch (Exception ex) {
            throw new JasperException(ex);
        }
public static voidcreateTypedArray(java.lang.String propertyName, java.lang.Object bean, java.lang.reflect.Method method, java.lang.String[] values, java.lang.Class t, java.lang.Class propertyEditorClass)
Create a typed array. This is a special case where params are passed through the request and the property is indexed.


	try {
	    if (propertyEditorClass != null) {
		Object[] tmpval = new Integer[values.length];
		for (int i=0; i<values.length; i++) {
		    tmpval[i] = getValueFromBeanInfoPropertyEditor(
                            t, propertyName, values[i], propertyEditorClass);
		}
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(Integer.class)) {
		Integer []tmpval = new Integer[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] =  new Integer (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(Byte.class)) {
		Byte[] tmpval = new Byte[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = new Byte (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(Boolean.class)) {
		Boolean[] tmpval = new Boolean[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = new Boolean (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(Short.class)) {
		Short[] tmpval = new Short[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = new Short (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(Long.class)) {
		Long[] tmpval = new Long[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = new Long (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(Double.class)) {
		Double[] tmpval = new Double[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = new Double (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(Float.class)) {
		Float[] tmpval = new Float[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = new Float (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(Character.class)) {
		Character[] tmpval = new Character[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = new Character(values[i].charAt(0));
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(int.class)) {
		int []tmpval = new int[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = Integer.parseInt (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(byte.class)) {
		byte[] tmpval = new byte[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = Byte.parseByte (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(boolean.class)) {
		boolean[] tmpval = new boolean[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = (Boolean.valueOf(values[i])).booleanValue();
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(short.class)) {
		short[] tmpval = new short[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = Short.parseShort (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(long.class)) {
		long[] tmpval = new long[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = Long.parseLong (values[i]);
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(double.class)) {
		double[] tmpval = new double[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = Double.valueOf(values[i]).doubleValue();
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(float.class)) {
		float[] tmpval = new float[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = Float.valueOf(values[i]).floatValue();
		method.invoke (bean, new Object[] {tmpval});
	    } else if (t.equals(char.class)) {
		char[] tmpval = new char[values.length];
		for (int i = 0 ; i < values.length; i++)
		    tmpval[i] = values[i].charAt(0);
		method.invoke (bean, new Object[] {tmpval});
	    } else {
		Object[] tmpval = new Integer[values.length];
		for (int i=0; i<values.length; i++) {
		    tmpval[i] =  
			getValueFromPropertyEditorManager(
                                            t, propertyName, values[i]);
		}
		method.invoke (bean, new Object[] {tmpval});
	    }
	} catch (Exception ex) {
            throw new JasperException ("error in invoking method", ex);
	}
public static java.lang.Stringdecode(java.lang.String encoded)
Decode an URL formatted string.

param
encoded The string to decode.
return
The decoded string.

        // speedily leave if we're not needed
    if (encoded == null) return null;
        if (encoded.indexOf('%") == -1 && encoded.indexOf('+") == -1)
        return encoded;

    //allocate the buffer - use byte[] to avoid calls to new.
        byte holdbuffer[] = new byte[encoded.length()];

        char holdchar;
        int bufcount = 0;

        for (int count = 0; count < encoded.length(); count++) {
        char cur = encoded.charAt(count);
            if (cur == '%") {
            holdbuffer[bufcount++] =
          (byte)Integer.parseInt(encoded.substring(count+1,count+3),16);
                if (count + 2 >= encoded.length())
                    count = encoded.length();
                else
                    count += 2;
            } else if (cur == '+") {
        holdbuffer[bufcount++] = (byte) ' ";
        } else {
            holdbuffer[bufcount++] = (byte) cur;
            }
        }
	// REVISIT -- remedy for Deprecated warning.
    //return new String(holdbuffer,0,0,bufcount);
    return new String(holdbuffer,0,bufcount);
public static java.lang.StringescapeQueryString(java.lang.String unescString)
Escape special shell characters.

param
unescString The string to shell-escape
return
The escaped shell string.

    if ( unescString == null )
        return null;
   
    String escString    = "";
    String shellSpChars = "&;`'\"|*?~<>^()[]{}$\\\n";
   
    for(int index=0; index<unescString.length(); index++) {
        char nextChar = unescString.charAt(index);

        if( shellSpChars.indexOf(nextChar) != -1 )
        escString += "\\";

        escString += nextChar;
    }
    return escString;
public static java.lang.StringgetContextRelativePath(javax.servlet.ServletRequest request, java.lang.String relativePath)
Convert a possibly relative resource path into a context-relative resource path that starts with a '/'.

param
request The servlet request we are processing
param
relativePath The possibly relative resource path


        if (relativePath.startsWith("/"))
            return (relativePath);
        if (!(request instanceof HttpServletRequest))
            return (relativePath);
        HttpServletRequest hrequest = (HttpServletRequest) request;
        String uri = (String)
            request.getAttribute("javax.servlet.include.servlet_path");
        if (uri != null) {
            String pathInfo = (String)
                request.getAttribute("javax.servlet.include.path_info");
            if (pathInfo == null) {
                if (uri.lastIndexOf('/") >= 0) 
                    uri = uri.substring(0, uri.lastIndexOf('/"));
            }
        }
        else {
            uri = hrequest.getServletPath();
            if (uri.lastIndexOf('/") >= 0) 
                uri = uri.substring(0, uri.lastIndexOf('/"));
        }
        return uri + '/" + relativePath;
public static java.lang.reflect.MethodgetReadMethod(java.lang.Class beanClass, java.lang.String prop)


        Method method = null;        
        Class type = null;
        try {
            java.beans.BeanInfo info
                = java.beans.Introspector.getBeanInfo(beanClass);
            if ( info != null ) {
                java.beans.PropertyDescriptor pd[]
                    = info.getPropertyDescriptors();
                for (int i = 0 ; i < pd.length ; i++) {
                    if ( pd[i].getName().equals(prop) ) {
                        method = pd[i].getReadMethod();
                        type   = pd[i].getPropertyType();
                        break;
                    }
                }
            } else {        
                // just in case introspection silently fails.
		throw new JasperException(
                    Localizer.getMessage("jsp.error.beans.nobeaninfo",
					 beanClass.getName()));
	    }
	} catch (Exception ex) {
	    throw new JasperException (ex);
	}
        if (method == null) {
            if (type == null) {
		throw new JasperException(
                    Localizer.getMessage("jsp.error.beans.noproperty", prop,
					 beanClass.getName()));
            } else {
		throw new JasperException(
                    Localizer.getMessage("jsp.error.beans.nomethod", prop,
					 beanClass.getName()));
            }
        }

	return method;
public static java.lang.ThrowablegetThrowable(javax.servlet.ServletRequest request)
Returns the value of the javax.servlet.error.exception request attribute value, if present, otherwise the value of the javax.servlet.jsp.jspException request attribute value. This method is called at the beginning of the generated servlet code for a JSP error page, when the "exception" implicit scripting language variable is initialized.

	Throwable error = (Throwable) request.getAttribute(SERVLET_EXCEPTION);
	if (error == null) {
	    error = (Throwable) request.getAttribute(JSP_EXCEPTION);
	    if (error != null) {
		/*
		 * The only place that sets JSP_EXCEPTION is
		 * PageContextImpl.handlePageException(). It really should set
		 * SERVLET_EXCEPTION, but that would interfere with the 
		 * ErrorReportValve. Therefore, if JSP_EXCEPTION is set, we
		 * need to set SERVLET_EXCEPTION.
		 */
		request.setAttribute(SERVLET_EXCEPTION, error);
	    }
	}

	return error;
public static java.lang.ObjectgetValueFromBeanInfoPropertyEditor(java.lang.Class attrClass, java.lang.String attrName, java.lang.String attrValue, java.lang.Class propertyEditorClass)

	try {
	    PropertyEditor pe = (PropertyEditor)propertyEditorClass.newInstance();
	    pe.setAsText(attrValue);
	    return pe.getValue();
	} catch (Exception ex) {
	    throw new JasperException(
                Localizer.getMessage("jsp.error.beans.property.conversion",
				     attrValue, attrClass.getName(), attrName,
				     ex.getMessage()));
	}
public static java.lang.ObjectgetValueFromPropertyEditorManager(java.lang.Class attrClass, java.lang.String attrName, java.lang.String attrValue)

	try {
	    PropertyEditor propEditor = 
		PropertyEditorManager.findEditor(attrClass);
	    if (propEditor != null) {
		propEditor.setAsText(attrValue);
		return propEditor.getValue();
	    } else {
		throw new IllegalArgumentException(
                    Localizer.getMessage("jsp.error.beans.propertyeditor.notregistered"));
	    }
	} catch (IllegalArgumentException ex) {
	    throw new JasperException(
                Localizer.getMessage("jsp.error.beans.property.conversion",
				     attrValue, attrClass.getName(), attrName,
				     ex.getMessage()));
	}
public static java.lang.reflect.MethodgetWriteMethod(java.lang.Class beanClass, java.lang.String prop)

	Method method = null;	
        Class type = null;
	try {
	    java.beans.BeanInfo info
                = java.beans.Introspector.getBeanInfo(beanClass);
	    if ( info != null ) {
		java.beans.PropertyDescriptor pd[]
		    = info.getPropertyDescriptors();
		for (int i = 0 ; i < pd.length ; i++) {
		    if ( pd[i].getName().equals(prop) ) {
			method = pd[i].getWriteMethod();
			type   = pd[i].getPropertyType();
			break;
		    }
		}
            } else {        
                // just in case introspection silently fails.
                throw new JasperException(
                    Localizer.getMessage("jsp.error.beans.nobeaninfo",
					 beanClass.getName()));
            }
        } catch (Exception ex) {
            throw new JasperException (ex);
        }
        if (method == null) {
            if (type == null) {
		throw new JasperException(
                        Localizer.getMessage("jsp.error.beans.noproperty",
					     prop,
					     beanClass.getName()));
            } else {
		throw new JasperException(
		    Localizer.getMessage("jsp.error.beans.nomethod.setproperty",
					 prop,
					 type.getName(),
					 beanClass.getName()));
            }
        }
        return method;
public static java.lang.ObjecthandleGetProperty(java.lang.Object o, java.lang.String prop)

        if (o == null) {
	    throw new JasperException(
	            Localizer.getMessage("jsp.error.beans.nullbean"));
        }
	Object value = null;
        try {
            Method method = getReadMethod(o.getClass(), prop);
	    value = method.invoke(o, (Object[]) null);
        } catch (Exception ex) {
	    throw new JasperException (ex);
        }
        return value;
public static voidhandleSetProperty(java.lang.Object bean, java.lang.String prop, java.lang.Object value)

	try {
            Method method = getWriteMethod(bean.getClass(), prop);
	    method.invoke(bean, new Object[] { value });
	} catch (Exception ex) {
	    throw new JasperException(ex);
	}
public static voidhandleSetProperty(java.lang.Object bean, java.lang.String prop, int value)

	try {
            Method method = getWriteMethod(bean.getClass(), prop);
	    method.invoke(bean, new Object[] { new Integer(value) });
	} catch (Exception ex) {
	    throw new JasperException(ex);
	}
public static voidhandleSetProperty(java.lang.Object bean, java.lang.String prop, short value)

	try {
            Method method = getWriteMethod(bean.getClass(), prop);
	    method.invoke(bean, new Object[] { new Short(value) });
	} catch (Exception ex) {
	    throw new JasperException(ex);
	}
public static voidhandleSetProperty(java.lang.Object bean, java.lang.String prop, long value)

	try {
            Method method = getWriteMethod(bean.getClass(), prop);
	    method.invoke(bean, new Object[] { new Long(value) });
	} catch (Exception ex) {
	    throw new JasperException(ex);
	}
public static voidhandleSetProperty(java.lang.Object bean, java.lang.String prop, double value)

	try {
            Method method = getWriteMethod(bean.getClass(), prop);
	    method.invoke(bean, new Object[] { new Double(value) });
	} catch (Exception ex) {
	    throw new JasperException(ex);
	}
public static voidhandleSetProperty(java.lang.Object bean, java.lang.String prop, float value)

	try {
            Method method = getWriteMethod(bean.getClass(), prop);
	    method.invoke(bean, new Object[] { new Float(value) });
	} catch (Exception ex) {
	    throw new JasperException(ex);
	}
public static voidhandleSetProperty(java.lang.Object bean, java.lang.String prop, char value)

	try {
            Method method = getWriteMethod(bean.getClass(), prop);
	    method.invoke(bean, new Object[] { new Character(value) });
	} catch (Exception ex) {
	    throw new JasperException(ex);
	}
public static voidhandleSetProperty(java.lang.Object bean, java.lang.String prop, byte value)

	try {
            Method method = getWriteMethod(bean.getClass(), prop);
	    method.invoke(bean, new Object[] { new Byte(value) });
	} catch (Exception ex) {
	    throw new JasperException(ex);
	}
public static voidhandleSetProperty(java.lang.Object bean, java.lang.String prop, boolean value)

	try {
            Method method = getWriteMethod(bean.getClass(), prop);
	    method.invoke(bean, new Object[] { new Boolean(value) });
	} catch (Exception ex) {
	    throw new JasperException(ex);
	}
public static voidhandleSetPropertyExpression(java.lang.Object bean, java.lang.String prop, java.lang.String expression, javax.servlet.jsp.PageContext pageContext, ProtectedFunctionMapper functionMapper)
Use proprietaryEvaluate public static void handleSetPropertyExpression(Object bean, String prop, String expression, PageContext pageContext, VariableResolver variableResolver, FunctionMapper functionMapper ) throws JasperException { try { Method method = getWriteMethod(bean.getClass(), prop); method.invoke(bean, new Object[] { pageContext.getExpressionEvaluator().evaluate( expression, method.getParameterTypes()[0], variableResolver, functionMapper, null ) }); } catch (Exception ex) { throw new JasperException(ex); } }

        try {
            Method method = getWriteMethod(bean.getClass(), prop);
            method.invoke(bean, new Object[] {
                PageContextImpl.proprietaryEvaluate(
                    expression,
                    method.getParameterTypes()[0],
		    pageContext,
                    functionMapper,
                    false )
            });
        } catch (Exception ex) {
            throw new JasperException(ex);
        }
public static voidinclude(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, java.lang.String relativePath, javax.servlet.jsp.JspWriter out, boolean flush)
Perform a RequestDispatcher.include() operation, with optional flushing of the response beforehand.

param
request The servlet request we are processing
param
response The servlet response we are processing
param
relativePath The relative path of the resource to be included
param
out The Writer to whom we are currently writing
param
flush Should we flush before the include is processed?
exception
IOException if thrown by the included servlet
exception
ServletException if thrown by the included servlet


        if (flush && !(out instanceof BodyContent))
            out.flush();

        // FIXME - It is tempting to use request.getRequestDispatcher() to
        // resolve a relative path directly, but Catalina currently does not
        // take into account whether the caller is inside a RequestDispatcher
        // include or not.  Whether Catalina *should* take that into account
        // is a spec issue currently under review.  In the mean time,
        // replicate Jasper's previous behavior

        String resourcePath = getContextRelativePath(request, relativePath);
        RequestDispatcher rd = request.getRequestDispatcher(resourcePath);

        rd.include(request,
                   new ServletResponseWrapperInclude(response, out));
private static voidinternalIntrospecthelper(java.lang.Object bean, java.lang.String prop, java.lang.String value, javax.servlet.ServletRequest request, java.lang.String param, boolean ignoreMethodNF)

        Method method = null;
        Class type = null;
        Class propertyEditorClass = null;
	try {
	    java.beans.BeanInfo info
		= java.beans.Introspector.getBeanInfo(bean.getClass());
	    if ( info != null ) {
		java.beans.PropertyDescriptor pd[]
		    = info.getPropertyDescriptors();
		for (int i = 0 ; i < pd.length ; i++) {
		    if ( pd[i].getName().equals(prop) ) {
			method = pd[i].getWriteMethod();
			type   = pd[i].getPropertyType();
			propertyEditorClass = pd[i].getPropertyEditorClass();
			break;
		    }
		}
	    }
	    if ( method != null ) {
		if (type.isArray()) {
                    if (request == null) {
			throw new JasperException(
		            Localizer.getMessage("jsp.error.beans.setproperty.noindexset"));
                    }
		    Class t = type.getComponentType();
		    String[] values = request.getParameterValues(param);
		    //XXX Please check.
		    if(values == null) return;
		    if(t.equals(String.class)) {
			method.invoke(bean, new Object[] { values });
		    } else {
			Object tmpval = null;
			createTypedArray (prop, bean, method, values, t,
					  propertyEditorClass); 
		    }
		} else {
		    if(value == null || (param != null && value.equals(""))) return;
		    Object oval = convert(prop, value, type, propertyEditorClass);
		    if ( oval != null )
			method.invoke(bean, new Object[] { oval });
		}
	    }
	} catch (Exception ex) {
	    throw new JasperException(ex);
	}
        if (!ignoreMethodNF && (method == null)) {
            if (type == null) {
		throw new JasperException(
                    Localizer.getMessage("jsp.error.beans.noproperty",
					 prop,
					 bean.getClass().getName()));
            } else {
		throw new JasperException(
	            Localizer.getMessage("jsp.error.beans.nomethod.setproperty",
					 prop,
					 type.getName(),
					 bean.getClass().getName()));
            }
        }
public static voidintrospect(java.lang.Object bean, javax.servlet.ServletRequest request)

	Enumeration e = request.getParameterNames();
	while ( e.hasMoreElements() ) {
	    String name  = (String) e.nextElement();
	    String value = request.getParameter(name);
	    introspecthelper(bean, name, value, request, name, true);
	}
public static voidintrospecthelper(java.lang.Object bean, java.lang.String prop, java.lang.String value, javax.servlet.ServletRequest request, java.lang.String param, boolean ignoreMethodNF)

        if( Constants.IS_SECURITY_ENABLED ) {
            try {
                PrivilegedIntrospectHelper dp =
		    new PrivilegedIntrospectHelper(
			bean,prop,value,request,param,ignoreMethodNF);
                AccessController.doPrivileged(dp);
            } catch( PrivilegedActionException pe) {
                Exception e = pe.getException();
                throw (JasperException)e;
            }
        } else {
            internalIntrospecthelper(
		bean,prop,value,request,param,ignoreMethodNF);
        }
private static booleanisSafeChar(int c)

	if (c >= 'a" && c <= 'z") {
	    return true;
	}
	if (c >= 'A" && c <= 'Z") {
	    return true;
	}
	if (c >= '0" && c <= '9") {
	    return true;
	}
	if (c == '-" || c == '_" || c == '." || c == '!" ||
	    c == '~" || c == '*" || c == '\'" || c == '(" || c == ')") {
	    return true;
	}
	return false;
public static java.lang.StringtoString(java.lang.Object o)

        return String.valueOf(o);
public static java.lang.StringtoString(byte b)

        return new Byte(b).toString();
public static java.lang.StringtoString(boolean b)

        return new Boolean(b).toString();
public static java.lang.StringtoString(short s)

        return new Short(s).toString();
public static java.lang.StringtoString(int i)

        return new Integer(i).toString();
public static java.lang.StringtoString(float f)

        return new Float(f).toString();
public static java.lang.StringtoString(long l)

        return new Long(l).toString();
public static java.lang.StringtoString(double d)

        return new Double(d).toString();
public static java.lang.StringtoString(char c)

        return new Character(c).toString();